Mitsubishi Electric Melsec Q Series Programming Manual page 488

12 ERROR CODE LISTS
Error Details
code code
Name
Indirect specified 16-
bit batch internal
16520 —
relay (M(n)) read
error
Indirect specified 32-
bit batch internal
16521 —
relay (M(n)) read
error
Indirect specified 16-
bit batch
16522 —
internal/latch relay
(B(n)) read error
Indirect specified 32-
bit batch
16523 —
internal/latch relay
(B(n)) read error
Indirect specified 16-
16524 — bit batch annunciator
(F(n)) read error
Indirect specified 32-
16525 — bit batch annunciator
(F(n)) read error
Indirect specified 16-
16538 — bit batch SM(SM(n))
read error
Indirect specified 32-
16539 — bit batch SM(SM(n))
read error
Error factor
Description
The indirectly specified device No. is
outside the range or is not a multiple of 16.
12 - 21
Error Processing
The block processing
in execution is Correct the program so that the indirectly
stopped and the next specified device No. is proper.
block is executed.
Corrective Action